Spinning-frame.



A. H.'MORTON. SPINNING FRAME.

APPL s, 1913.I 1,163,552. Patented Bec. 7, 1915.

'2 sHEETs-SHEET 1.

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7am/wz@ A. H. MOR-ION.

SPINNING FRAME.

APPLICATION FILED IAN. I6. 1913.

Patented Dee. '7, 1915.

2 SHEETS-SHEET 2.

l ALBERT n. Mormon, or LOWELL, MASsAcHUS-ETTS.

Application filed January 16, 1913. Serial No. 742,362.

To all whom it 'may concern.' y

Be it known that I, ALBERT H. MonroN, a citizen of the United States, residing at Lowell, in the county' of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Spin,- ning-Iframes; and I do hereby declare the following4 to be a. full, clear, andr exact description of the inventiomsuch as will enable others skilled in thek art to which it ai'ipertains to make and use the Same.

The present invention relates toy spinning frames and the like, and more particularly to top roll weighting mechanisms therefor.

The object of the present invention is to reorganize and improve the spinning frame in respect to the top` roll weighting mechanisms for the drawing rolls.

In the companion application Serial No. 742,361, filed of yeven date.` herewith, there are illustratedand describedtwofforms of top roll weightiiigmechavnisms.y In that ap,- plication, specific claims to one yform., of such mechanisms are presented.y yInthis application specific claims to vrthe other form of such mechanisms are presented. y

In the accompanyingwdrawings illustrat ing` the preferred form of the invention, Figure l is a sectional elevation oi'aportion of the spinning frame showingthe top roll weighting mechanism; Fig. 2 is ay front elevation of the same; andhigs. 3 and 4; illus,- trate details of construction l(hereinafter. relierredto.

Referring to the l the mechanism is described as follows:

The drawingl rolls-,are supported :in lthe roll stand l mounted on the` rollerbeam 2 of the spinning frame. The4 back saddleB has bearings at its `i'rontand rear ends en# gaging the bearings of the .middle` andy back top rolls. By reference to Fig. lit will be observedv that this back saddle is provided with a groove l in its upper` side whichlren ceives wicking` 5 extending through holes at the fro-nt and back bearings to conduct the oil thereto. The back `saddle is provided at 6 with a bearing to receive the rear,A endy of the front saddle. Theratio of thedistance of the bearing 6 fromthe middle roll tothe distance from` it to theback roll is, in the illustrated embodiment, as 2 to l, so that, for example, if the pressure applied to the bearing 6 were twelve pounds,y it would be distributed tothe two bearings, four` pounds t@ the middle, ,roll7 eight pounds t0 ,thebwk Specification of Letters Patent.

accompanying drawings,

Patented nec. v, reis.

roll. The front saddle 7 has a bearing at its front end which rests upon the front roll,

and another bearing at its rear end which rests upon the bearing 6 of the back saddle. The stirrup 8 consists of a iiattened bar which extends through a hole 9 in the front saddle located midway between the front roll and the middle roll and has its bearing end l0 engaging a bearing cavity l1 at the rear of the hole 9. This front saddle has pressure applied to it at the bearing 11 and the ratioof the distance from the bearing 1l to the rear saddle bearing 6 tothe distance fromcthe bearing l1 to the front roll is as four to three, so that, for example, if a pressure of ytwenty-eight pounds were applied to the bearinglO by the stirrup, it

wouldbe distributed between the front and back saddles in the ratio of 16 to. l2. Thus rthe distribution of twenty-eight pounds on the top rolls would be sixteen pounds to the frontroll, four pounds to the middle roll and eight pounds to tlieback roll. Heretofore the point of application of the stirrup to the front Saddle has been at a point directly over the opening between the fro-nt and middle rolls, andthe pull exerted by thel stirrup upon' the front Saddle was exerted in the line` of the` space between these rolls,` In order to obtain sufficient pressure upon the middle and back rolls to cause t them to hold the yarn seas toinsure its being drawn properly, a very excessive pres,- sure was required .to be applied to the stirrup, with the result that an extremely high pressure was applied tothe front roll,

with injurious effecty upon its durability and the durability of the bearings of the stand in which itwas Supported. The front top rolls were rapidly worn under the severe pressure with which they were pressed against thefront bottom roll, requiringfrequent renewal to prevent icluting yThe diminution of pressure secured by the present construction greatly prolonge the life of the front top rolls.

The stirrup of the present invention is a round bar, flattened onits front and rear sides, as shown, thereby insuring a stirrup yof great rigidity. Its lower end is offset from the main body of therrod `a distance equal to the oiset ofl the top end l0, so that the two ends of the stirrup lie in a line intersecting the middle rolls and the pull` of `the stirrup yupon. the front saddle is exerted along thisline The lower end of thestirrup is acted upon by the weight lever 12vy ofthe stirrup the adjusting knife-edged n ut Y 14 is screwed. The knife edges of the nut 14 engage the grooves lin the sides of the weight lever 12. The front or fulcrum lend of the weight lever 12 is convex in plan and provided with a rocking fulcrum surface 15 which engages the lhold-down 16. The weight lever 12 is provided with lateral ears 1-7, or rocker surfaces, which engage,V lateral guide surfaces of the hold-down and hold the weight lever in proper position yand from lateral deflection with consequent mal- 'positioning of parts. 1t is observed that the inclination of the weight lever is such as to tend to cause it to move downwardly yand to the left as viewed in Fig. 1, in the directionv of its length. rThis tendency is overcome by the engagement of the ears 17 with the holddown. 1t will be observed `that the rocking fulcrum surface 15 of the weight lever affordsY a practically `friotionless engagement of the weight lever with the hold-down. The ears 17 of the weight lever. maintain it v inproper 'position so that thestirrup is properly positioned between the front and middle rolls. By lifting the weight rlever y12 the nut 14: may be turned such a number of half revolutions as may be required to A'either shorten or lengthen the stirrup .to

compensate for wear-or slight inequalities in kk'the dimensions of the parts in order to bring the parts into the correct position of adjustment. This is desirable, because in lthe lmanufacture ofV thesev devices theV expense thereof mustV be reduced to the lowest/poslsible amount, and cast iron' castings are used the apparatus.`

for'the saddles and forthe weight lever and "hold-down. This conduces to the economy yof manufacture without impairing the effi? ciency of the operation or the durability of of a base 18 secured by a bolt to the front Y edge of the roller'beam; it has two upright webs 19 united at their tops by a fulcrurn plate 20. The holddown constitutes the 'point of application, or the fixed fulcrum ofthe weight lever, and the pull upon the stirrup is secured by applyingthe weight to the weight lever 12 so as to cause the fulcrum surface 15 to engage the fulcrum plate 20 of the hold-down. The'rear edges of the "webs19 cooperate with the end rockers or lears 17 of the weight lever.

fulcrum end of the weight lever being con- The front or `vex in plan, engages the webs 19 over small areas only, if at all, and so opposes little friction tothe turning of the weight lever on its fulcrum. By providing the weight lever with several rocker surfaces, to wit,

the fulcrum surface 15 and the rocker ears 17, the free movement of the weight lever is secured, with the result that the useful effect The hold-down 16 consists Y of the weight operating upon the weight lever is substantially all transmitted to the top roll saddle, Aand little is lost in internal friction. This construction of top roll weighting mechanism commends itself favorably to users, not only by reason of the advantages which it possesses overthe constructions of the prior art, which are obvious to persons familiar therewith, but also by reason of the fact that it is adapted to old work as well as to new. Thus, for example, it is easily adapted to old spinning frames by simply takingV out the former lever screws and applying the hold-downs to the roller beam and securing them in place by a bolt. The hold-downs being applied Vand bolted in place, the rest Iof the mechanism is easilyapplied to the rolls and the substitution is completed. The principal advantage of this specific construction resides in the permanence with which an adjusted position is maintained in the operation of the spinning frame and the facility by `which the proper positioning of the weight lever may be secured by screwing up or down the adjusting nut 14C on the lower end of the stirrup.

The present invention is-not limited to the illustratedV embodiment as it may be embodied in other forms within the scope of the invention as delin'ed in the following claims:-l 1 Y l V1. Aspinning frame or the like having, in

combination, drawing rolls' and -their sup- A spinning frame or the'like having, in combination, drawing rolls and their supporting means, a saddle, a' weight lever pro1 vided with a rocker fulcrum surface and laterally disposed rocker ears, a stirrup connecting the saddle and weight lever, and a hold-down rigidly mounted on the roller beam of the spinning frame and provided with two yupwardly extending webs united at their upper ends by a fulcrum plate, belng adapted to be engaged by the fulcrum surface 'of the'weight lever, and the upwardly extending webs adapted to be engaged by the laterally disposed rocker ears ,of the weight lever, the whole being constructed and arranged to reduce the friction between them to a minimum. j

3. A spinning frame or the like having, in i combination, drawing rolls andftheir supporting means, a'saddle, a weight lever, a

Astirrup connecting the saddle and weight lever, and a down-hold rigidly secured to lthe roller beam ofthe frame, said downhold having two upright webs 4united at their tops by the fulcrum plate adapted to be engaged by the fulerum surface of the Weight lever, the fulcrum portion of said weight lever having convex side surfaces, substantially as described.

Il. A spinning frame or the like having, in combination, drawing rolls and their supporting means, a saddle, a Weight lever provided With a fulerum surface and ears, a stirrup connecting the saddle and the Weight lever, a hold-down comprising a base-plate bolted to the roller beam, two Webs extend ing upwardly from the base, and a fulcrum plate extending between the tops of the Webs and provided with a substantially iat 'fulcrum surface adapted to be engaged by the fulcrum surface of the Weight lever, the

Vlongitudinal thrust of the Weight lever for supporting it against lateral deflection, a stirrup connecting the saddle and Weight lever and a hold-down for the Weight lever,

substantially as described.

ALBERT H. MORTON.

Witnesses HORACE VAN EVEREN, GEORGE E. STEBBINS.

Copies of this patent may be obtained for ve oents each, by addressing the Commissioner of Patents,

Washington, D. C. 

